patch-2.4.13 linux/drivers/pcmcia/sa1100_jornada720.c

• Lines: 216
• Date: Thu Oct 11 09:43:29 2001
• Orig file: v2.4.12/linux/drivers/pcmcia/sa1100_jornada720.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.12/linux/drivers/pcmcia/sa1100_jornada720.c linux/drivers/pcmcia/sa1100_jornada720.c
@@ -0,0 +1,215 @@
+/*
+ * drivers/pcmcia/sa1100_jornada720.c
+ *
+ * Jornada720 PCMCIA specific routines
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/sched.h>
+
+#include <asm/delay.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/arch/pcmcia.h>
+
+#define SOCKET0_POWER   GPIO_GPIO0
+#define SOCKET0_3V      GPIO_GPIO2
+#define SOCKET1_POWER   (GPIO_GPIO1 | GPIO_GPIO3)
+#define SOCKET1_3V   GPIO_GPIO3
+
+static int jornada720_pcmcia_init(struct pcmcia_init *init)
+{
+  int return_val=0;
+
+  GRER |= 0x00000002;
+  /* Set GPIO_A<3:1> to be outputs for PCMCIA/CF power controller: */
+  PA_DDR = 0;
+  PA_DWR = 0;
+  PA_SDR = 0;
+  PA_SSR = 0;
+
+  PB_DDR = 0;
+  PB_DWR = 0x01;
+  PB_SDR = 0;
+  PB_SSR = 0;
+
+  PC_DDR = 0x88;
+  PC_DWR = 0x20;
+  PC_SDR = 0;
+  PC_SSR = 0;
+
+  INTPOL1 |=
+    (1 << (S0_READY_NINT - SA1111_IRQ(32))) |
+    (1 << (S1_READY_NINT - SA1111_IRQ(32))) |
+    (1 << (S0_CD_VALID - SA1111_IRQ(32))) |
+    (1 << (S1_CD_VALID - SA1111_IRQ(32))) |
+    (1 << (S0_BVD1_STSCHG - SA1111_IRQ(32))) |
+    (1 << (S1_BVD1_STSCHG - SA1111_IRQ(32)));
+
+  return_val+=request_irq(S0_CD_VALID, init->handler, SA_INTERRUPT,
+			  "Jornada720 PCMCIA (0) CD", NULL);
+  return_val+=request_irq(S1_CD_VALID, init->handler, SA_INTERRUPT,
+			  "Jornada720 CF (1) CD", NULL);
+  return_val+=request_irq(S0_BVD1_STSCHG, init->handler, SA_INTERRUPT,
+			  "Jornada720 PCMCIA (0) BVD1", NULL);
+  return_val+=request_irq(S1_BVD1_STSCHG, init->handler, SA_INTERRUPT,
+			  "Jornada720 CF (1) BVD1", NULL);
+
+  return (return_val<0) ? -1 : 2;
+}
+
+static int jornada720_pcmcia_shutdown(void)
+{
+  free_irq(S0_CD_VALID, NULL);
+  free_irq(S1_CD_VALID, NULL);
+  free_irq(S0_BVD1_STSCHG, NULL);
+  free_irq(S1_BVD1_STSCHG, NULL);
+
+  INTPOL1 &=
+    ~((1 << (S0_CD_VALID - SA1111_IRQ(32))) |
+      (1 << (S1_CD_VALID - SA1111_IRQ(32))) |
+      (1 << (S0_BVD1_STSCHG - SA1111_IRQ(32))) |
+      (1 << (S1_BVD1_STSCHG - SA1111_IRQ(32))));
+
+  return 0;
+}
+
+static int jornada720_pcmcia_socket_state(struct pcmcia_state_array
+					*state_array)
+{
+  unsigned long status;
+  int return_val=1;
+
+  if(state_array->size<2) return -1;
+
+  memset(state_array->state, 0,
+	 (state_array->size)*sizeof(struct pcmcia_state));
+  status=PCSR;
+  state_array->state[0].detect=((status & PCSR_S0_DETECT)==0)?1:0;
+  state_array->state[0].ready=((status & PCSR_S0_READY)==0)?0:1;
+  state_array->state[0].bvd1=((status & PCSR_S0_BVD1)==0)?0:1;
+  state_array->state[0].bvd2=((status & PCSR_S0_BVD2)==0)?0:1;
+  state_array->state[0].wrprot=((status & PCSR_S0_WP)==0)?0:1;
+  state_array->state[0].vs_3v=((status & PCSR_S0_VS1)==0)?1:0;
+  state_array->state[0].vs_Xv=((status & PCSR_S0_VS2)==0)?1:0;
+  state_array->state[1].detect=((status & PCSR_S1_DETECT)==0)?1:0;
+  state_array->state[1].ready=((status & PCSR_S1_READY)==0)?0:1;
+  state_array->state[1].bvd1=((status & PCSR_S1_BVD1)==0)?0:1;
+  state_array->state[1].bvd2=((status & PCSR_S1_BVD2)==0)?0:1;
+  state_array->state[1].wrprot=((status & PCSR_S1_WP)==0)?0:1;
+  state_array->state[1].vs_3v=((status & PCSR_S1_VS1)==0)?1:0;
+  state_array->state[1].vs_Xv=((status & PCSR_S1_VS2)==0)?1:0;
+  return return_val;
+}
+
+static int jornada720_pcmcia_get_irq_info(struct pcmcia_irq_info *info)
+{
+  switch(info->sock){
+  case 0:
+    info->irq=S0_READY_NINT;
+    break;
+
+  case 1:
+    info->irq=S1_READY_NINT;
+    break;
+
+  default:
+    return -1;
+  }
+  return 0;
+}
+
+static int jornada720_pcmcia_configure_socket(const struct pcmcia_configure
+					    *configure)
+{
+  unsigned long pccr=PCCR, gpio=PA_DWR;
+
+printk("%s(): config socket %d vcc %d vpp %d\n", __FUNCTION__,
+	       configure->sock, configure->vcc, configure->vpp);
+  switch(configure->sock){
+  case 0:
+    switch(configure->vcc){
+    case 0:
+      pccr = (pccr & ~PCCR_S0_FLT);
+      gpio&=~(SOCKET0_POWER | SOCKET0_3V);
+      break;
+
+    case 33:
+      pccr = (pccr & ~PCCR_S0_PSE) | PCCR_S0_FLT | PCCR_S0_PWAITEN;
+      gpio |= SOCKET0_POWER | SOCKET0_3V;
+      break;
+
+    case 50:
+      pccr = (pccr | PCCR_S0_PSE | PCCR_S0_FLT | PCCR_S0_PWAITEN);
+      gpio = (gpio & ~SOCKET0_3V) | SOCKET0_POWER;
+      break;
+
+    default:
+      printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __FUNCTION__,
+	     configure->vcc);
+      return -1;
+    }
+    switch(configure->vpp){
+    case 0:
+      break;
+    case 50:
+	printk(KERN_ERR "%s(): 5.0 Vpp %u\n", __FUNCTION__,
+	       configure->vpp);
+      break;
+    case 120:
+	printk(KERN_ERR "%s(): 12 Vpp %u\n", __FUNCTION__,
+	       configure->vpp);
+      break;
+    default:
+	printk(KERN_ERR "%s(): unrecognized Vpp %u\n", __FUNCTION__,
+	       configure->vpp);
+	return -1;
+    }
+    pccr=(configure->reset)?(pccr | PCCR_S0_RST):(pccr & ~PCCR_S0_RST);
+    break;
+
+  case 1:
+    switch(configure->vcc){
+    case 0:
+      pccr = (pccr & ~PCCR_S1_FLT);
+      gpio &= ~(SOCKET1_POWER);
+      break;
+
+    case 33:
+      pccr = (pccr & ~PCCR_S1_PSE) | PCCR_S1_FLT | PCCR_S1_PWAITEN;
+      gpio |= SOCKET1_POWER;
+      break;
+
+    case 50:
+      pccr = (pccr | PCCR_S1_PSE | PCCR_S1_FLT | PCCR_S1_PWAITEN);
+      gpio = (gpio & ~(SOCKET1_POWER)) | SOCKET1_POWER;
+      break;
+
+    default:
+      printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __FUNCTION__,
+	     configure->vcc);
+      return -1;
+    }
+    if(configure->vpp!=configure->vcc && configure->vpp!=0){
+      printk(KERN_ERR "%s(): CF slot cannot support Vpp %u\n", __FUNCTION__,
+	     configure->vpp);
+      return -1;
+    }
+    pccr=(configure->reset)?(pccr | PCCR_S1_RST):(pccr & ~PCCR_S1_RST);
+    break;
+  default:
+    return -1;
+  }
+  PCCR = pccr;
+  PA_DWR = gpio;
+  return 0;
+}
+
+struct pcmcia_low_level jornada720_pcmcia_ops = {
+  jornada720_pcmcia_init,
+  jornada720_pcmcia_shutdown,
+  jornada720_pcmcia_socket_state,
+  jornada720_pcmcia_get_irq_info,
+  jornada720_pcmcia_configure_socket
+};
+